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https://issues.apache.org/jira/browse/MAHOUT-4?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12576890#action_12576890
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Ankur commented on MAHOUT-4:
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Thanks for your comment. A few of my replies below:-
> Maybe you might ..
Will make these changes in the next patch update.
> ... - how many cluster numbers do you expect ...?
Well typically I would expect a user:cluster ratio of 1000:1. So for 1 million
users, 1000 clusters would be created.
In main method, a sample user-story matrix is provided which can be changed to
experiment. However if required I can write a small unit test case to produce
randomnly generated user-story matrix but am not sure if that will help better.
> I know EM as ...
I like the idea of general EM framework. Will definitely try to change the code
so that it reflect EM more generically as suggested.
> Simple prototype for Expectation Maximization (EM)
> --------------------------------------------------
>
> Key: MAHOUT-4
> URL: https://issues.apache.org/jira/browse/MAHOUT-4
> Project: Mahout
> Issue Type: New Feature
> Reporter: Ankur
> Attachments: Mahout_EM.patch
>
>
> Create a simple prototype implementing Expectation Maximization - EM that
> demonstrates the algorithm functionality given a set of (user, click-url)
> data.
> The prototype should be functionally complete and should serve as a basis for
> the Map-Reduce version of the EM algorithm.
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